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Factory making China Pvpp CAS 25249-54-1

Short Description:


  • Product Name: Crospovidone
  • INCI Name: Insoluble PVP,PVPP
  • CAS No.: 9003-39-8
  • Formula:  (C6H9NO)n
  • Refference: Current USP/NF/EP/BP
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    Factory making China Pvpp CAS 25249-54-1 Detail:

    Crospovidone is a crosslinked PVP,insoluble PVP,it is hygroscopic,insoluble in water and all other common solvents,but it swells rapidly in aqueous solutbition without any gel froms.Its; classified as Crospovidone Type A and Type B according to the different particle size.

    Key Technical Parameters:

    Product Crospovidone Type A Crospovidone Type B
    Appearance White or yellowish-white powder or flakes
    Identifications A.Infrared Absorption
    B.No blue color develops.
    C.A Suspension is formed and no clear solution is obtained within 15 min.
    D.Majority of particles are in the range 50 ~300 μm is type A,majority of particles are in the range 5~50 μm
    Solubility Practically insoluble in water,in alcohol and in methylene chloride
    Water- soluble substances 1.0% max 1.0% max
    pH((1% in water)   5.0 –8.0 5.0 –8.0
    Loss on Drying 5.0% max. 5.0% max.
    Sulphated Ash 0.1% max. 0.1% max.
    Nitrogen content                      11.0 -12.8 % 11.0 -12.8 %
    Impurity A 10 ppm max. 10 ppm max.
    Peroxide(As H2O2) 400 ppm max. 1000 ppm max.
    Heavy Metals 10 ppm max. 10 ppm max.

    Applications:

    Crospovidone are widely used as 1)Disintergrating agent,2)Stabilizer for suspension,3)Moisture Absorbent, 4)Complextant of Polyphenols and Tannin for the extract formulations.


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